.img-select{
	width:509px;
	height:300px;
}
 
.dialog-bg{
	display: none;
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	background: rgba(0,0,0,0.4);
}
 
.dialog-bg .img-box{
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%,-50%);
}
 
.dialog-bg .img-box img{
	width: 100%;
	height: 100%;
}